Being a pilot does not say how much medical knowledge you have.
Having heart problems I too am required to get an EKG every 6 months. They tell that you currently are not having problems or is your heart is so massively damaged. They do little for knowing if you will have problems tomorrow from damage that don’t show symptoms currently.
But it does say what knowledge I have regarding how the FAA reacts to any perceived cardiac issues,and not just those found in an EKG. I speak from first-hand experience.